A Study On The Design And Construction Of Pulse Oximeter
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A Study On The Design And Construction Of Pulse Oximeter
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Author : Theera Leeudomwong
language : en
Publisher:
Release Date : 1999
A Study On The Design And Construction Of Pulse Oximeter written by Theera Leeudomwong and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
Design Of Pulse Oximeters
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Author : John G. Webster
language : en
Publisher: CRC Press
Release Date : 1997-10-23
Design Of Pulse Oximeters written by John G. Webster and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-10-23 with Science categories.
Design of Pulse Oximeters describes the hardware and software needed to make a pulse oximeter, and includes the equations, methods, and software required for them to function effectively. The book begins with a brief description of how oxygen is delivered to the tissue, historical methods for measuring oxygenation, and the invention of the pulse oximeter in the early 1980s. Subsequent chapters explain oxygen saturation display and how to use an LED, provide a survey of light sensors, and review probes and cables. The book closes with an assessment of techniques that may be used to analyze pulse oximeter performance and a brief overview of pulse oximetry applications. The book contains useful worked examples, several worked equations, flow charts, and examples of algorithms used to calculate oxygen saturation. It also includes a glossary of terms, instructional objectives by chapter, and references to further reading.
The Design Of A Pulse Oximeter
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Author : Paul Kavanagh
language : en
Publisher:
Release Date : 2003
The Design Of A Pulse Oximeter written by Paul Kavanagh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Pulse oximeters categories.
Implementation And Design Of A Portable Pulse Oximeter Using Spectral Analysis
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Author : Terry Lee Rusch
language : en
Publisher:
Release Date : 1994
Implementation And Design Of A Portable Pulse Oximeter Using Spectral Analysis written by Terry Lee Rusch and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Oximetry categories.
Development Of Continuous Monitoring Pulse Oximeter Device
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Author : Badar Jahangir Kayani
language : en
Publisher:
Release Date : 2021
Development Of Continuous Monitoring Pulse Oximeter Device written by Badar Jahangir Kayani and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with Electrical engineering categories.
The rise of wearable technology has enabled continuous fitness and health monitoring. Continuous health monitoring is seen as a very powerful tool for preventative health care. The development of advanced sensors and better devices allow for more comprehensive monitoring and wider adoption. Wearable devices commonly use PPG based pulse oximetry to measure heart rate and oxygen saturation, two very important health metrics, although limitation in their design prevent them from being very practical from a health monitoring perspective. This research presents the design and development of a novel wearable pulse oximeter device that attempts to overcome limitations of existing devices. All aspects of the device design including mechanical form factor, electrical circuit and embedded software are covered in length. The resulting device, Earox, is an ear-based design that clips on the ear lobe to continuously monitor heart rate and oxygen saturation for two weeks on a single charge.
Wireless Reflectance Pulse Oximeter Design And Photoplethysmographic Signal Processing
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Author : Kejia Li
language : en
Publisher:
Release Date : 2010
Wireless Reflectance Pulse Oximeter Design And Photoplethysmographic Signal Processing written by Kejia Li and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Pulse oximetry, a noninvasive circulatory system monitoring technique, has been widely adopted in clinical and homecare applications for the determination of heart rate and blood oxygen saturation, where measurement locations are typically limited to fingertips and earlobes. Prior research indicates a variety of additional clinical parameters that can be derived from a photoplethysmogram (PPG), the fundamental time-domain signal yielded by a pulse oximeter sensor. The gap between this research potential and practical device applications can be decreased by improvements in device design (e.g., sensor performance and geometry, sampling fidelity and reliability, etc.) and PPG signal processing. This thesis documents research focused on a novel pulse oximeter design and the accompanying PPG signal processing and interpretation. The filter-free reflectance design adopted in the module supplements new methods for signal sampling, control, and processing, with a goal to acquire high-fidelity raw data that can provide additional physiologic data for state-of-health analyses. Effective approaches are also employed to improve signal stability and quality, including shift-resistant baseline control, an anti-aliasing sampling frequency, light emitting diode intensity autoregulation, signal saturation inhibition, etc. MATLAB interfaces provide data visualization and processing for multiple applications. A feature detection algorithm (decision-making rule set) is presented as the latest application, which brings the element of intelligence into the pulse oximeter design by enabling onboard signal quality verification. Two versions of the reflectance sensor were designed, built, calibrated, and utilized in data acquisition work. Raw data, which are composed of four channels of signals at a 240 Hz sampling rate and a 12-bit precision, successfully stream to a personal computer via a serial connection or wireless link. Due to the optimized large-area sensor and the intensity autoregulation mechanism, PPG signal acquisition from measurement sites other than fingertips and earlobes, e.g., the wrist, become viable and retain signal quality, e.g., signal-to-noise ratio. With appropriate thresholds, the feature detection algorithm can successfully indicate motion occurrence, signal saturation, and signal quality level. Overall, the experimental results from a variety of subjects and body locations in multiple applications demonstrate high quality PPGs, prototype reliability, and prospects for further research value.
Design And In Vivo Evaluation Of A Reflectance Pulse Oximeter Sensor
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Author : Marybeth J. McGinn
language : en
Publisher:
Release Date : 1989
Design And In Vivo Evaluation Of A Reflectance Pulse Oximeter Sensor written by Marybeth J. McGinn and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Blood gases categories.
Practical Design And Applications Of Medical Devices
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Author : Dilber Uzun Ozsahin
language : en
Publisher: Elsevier
Release Date : 2023-11-25
Practical Design And Applications Of Medical Devices written by Dilber Uzun Ozsahin and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-11-25 with Computers categories.
Practical Design and Applications of Medical Devices focuses on advanced medical device development featuring various biomedical instruments and their applications. The book focuses on devices which receive and transmit bioelectric signals, such as electrocardiograph, electrodes, blood flow, blood pressure, physiological effects and, in some cases, current flowing through the human body. A thorough guide for researchers and engineers in the field of biomedical and instrumentation engineering, this book presents a streamlined medical strategy for designing these medical devices, sensors, and tools. It also promotes operational efficiency in the healthcare industry, with the goals of improving patient safety, lowering overall healthcare costs, broadening access to healthcare services, and improving accessibility. Covers the fundamental principles of medical and biological instrumentation, as well as the typical features of its design and construction Provides various methods of designing modern medical devices Focuses on specific devices with detailed functions, applications, and how they measure and transmit data
Design Of A Pulse Oximeter For Non Invasive Measurement Saturated Oxygen In Human Blood
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Author : Anh Hoai Chu
language : en
Publisher:
Release Date : 2010
Design Of A Pulse Oximeter For Non Invasive Measurement Saturated Oxygen In Human Blood written by Anh Hoai Chu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Pulse oximeters categories.
A Special Inference Problem In Repeated Measures Design With Applications To Pulse Oximetry
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Author : Nfii Kangong Ndikintum
language : en
Publisher:
Release Date : 2007
A Special Inference Problem In Repeated Measures Design With Applications To Pulse Oximetry written by Nfii Kangong Ndikintum and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
The objective of pulse oximetry studies is to demonstrate that the paired repeated measurements from a pulse oximeter (SpO2) and a co-oximeter (SaO2), agree sufficiently with respect to a pre-specified agreement score. The measure of agreement in pulse oximetry studies is the Accuracy Root-Mean Square (ARMS). To account for both systematic and random components of error, pulse oximeter manufacturers have defined accuracy to represent the root-mean square between the pulse oximeter and co-oximeter values. The current methods for analyzing pulse oximetry method comparison studies are mostly descriptive. Pennello (2002) initiated the discussion on sample size calculation and test of statistical hypotheses applied to the ARMS. Using Pennello's results as a springboard, the purpose of this dissertation was to further study the distributional properties of the ARMS and recommend sample size and test of hypothesis methodologies appropriate to this agreement score. We proposed and evaluated via simulation studies a more robust method for testing the statistical hypothesis of the accuracy of a pulse oximeter. The proposed Z-test, based on restricted maximum likelihood estimate of the between-subject variance is superior to the Pennello test; the alpha level is maintained and the power of the test is superior to the power of the Pennello test. For all configurations studied, the Pennello Z-test is conservative (undersized). The proposed Z-test is therefore highly recommended to be incorporated in future pulse oximetry studies as a test statistic of choice. The proposed Z-test would obviate the need for regulatory agencies (e.g., the FDA) to base device approval decisions on subjective assessments of accuracy root-mean square (i.e., comparing ARMS to a target of 3%). A Likelihood Ratio test was also derived and evaluated via simulation studies. It is highly recommended not to use the LRT in studies aimed at assessing the accuracy of a pulse oximeter, since the test is liberal (oversized). We also derived a sample size algorithm for testing the accuracy of a pulse oximeter and via simulation studies we evaluated the performance of the proposed algorithm. The resulting sample size should be inflated if an effect size greater than one is anticipated.